Justin Bieber has been caught on camera ''spanking'' strippers.

The 19-year-old singer's raunchy behaviour is reported to have been filmed on a surveillance video at a lap-dancing club in Queensland, Australia.

The footage allegedly shows Justin in a number of ''compromising positions'' including ''spanking'' their bottoms and ''pulling off their panties with his teeth'', RadarOnline.com reports.

The 12-minute video - which is said to be being sold to media outlets for a ''fortune'' - shows the 'Boyfriend' singer in a baseball cap surrounded by two topless women and a security guard.

A source told the website that the ''crystal clear'' footage sees Justin ''in compromising positions and romping with two strippers during which he spanks their bum and pulls off their panties with his teeth''.

News of the video has emerged just days after Justin and his friend Khalil Sharieff were photographed licking the nipples of another topless stripper at a party.

A source told TMZ that the woman was hired to ''perform'' for the teenage star and his friends at a bash at a Los Angeles recording studio and described her as ''old enough to be [Justin's] mother.''